How much is a Rolex Presidential model 1986 929000? It is yellow gold with 89 diamonds.?

The clock is in the gem Mint Condition,

More locations Jewelers / or watch repair pawnshops have books available that provide this information. Take a few seconds to get one: a value for him. They will also be able to see the actual condition to give an idea of its value. I recently did the same a Rolex 1949, and was rather pleased with the price.

Rolex Day-Date President 18K Gold Watch Review